@article{article1311398d,
title   = {Robson ten group classification system applied to women with severe maternal morbidity},
author = {Ferreira, Elton Carlos and Costa, Maria Laura and Cecatti, José Guilherme and Haddad, Samira M. and Parpinelli, Mary Angela and Robson, Michael S. and Quintana, Silvana Maria and Moisés, Elaine Christine Dantas},
year = {2015},
doi = {10.1111/birt.12155},
journal   = {Birth}
}